Have meshlink_get_node() and _submesh() set MESHLINK_ENOENT when appropriate.

These functions can return NULL both when the parameters are invalid or if
the node or submesh does not exist, meshlink_errno must be set correctly
to distinguish between the two cases.

diff --git a/src/meshlink.c b/src/meshlink.c
index 90d64648ae8945384ac110e1ac3a716ab2a27c72..bee8eee3b44ab94d7acacd6db6ce2dc73b2ec96f 100644 (file)
--- a/src/meshlink.c
+++ b/src/meshlink.c
@@ -1857,6 +1857,11 @@ meshlink_node_t *meshlink_get_node(meshlink_handle_t *mesh, const char *name) {
        pthread_mutex_lock(&(mesh->mesh_mutex));
        node = (meshlink_node_t *)lookup_node(mesh, (char *)name); // TODO: make lookup_node() use const
        pthread_mutex_unlock(&(mesh->mesh_mutex));
+
+       if(!node) {
+               meshlink_errno = MESHLINK_ENOENT;
+       }
+
        return node;
 }
 
@@ -1871,6 +1876,11 @@ meshlink_submesh_t *meshlink_get_submesh(meshlink_handle_t *mesh, const char *na
        pthread_mutex_lock(&(mesh->mesh_mutex));
        submesh = (meshlink_submesh_t *)lookup_submesh(mesh, name);
        pthread_mutex_unlock(&(mesh->mesh_mutex));
+
+       if(!submesh) {
+               meshlink_errno = MESHLINK_ENOENT;
+       }
+
        return submesh;
 }